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2009-11-17Use clang to run tests which include headers from the system.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89085 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Implement template instantiation for using directives, which is dead simple.Douglas Gregor
Also, make the "don't know how to instantiate a particular kind of declaration" diagnostic nicer, so we don't have to trap Clang in a debugger to figure out what went wrong. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89050 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Require the object type of a member access expression ("." or "->") toDouglas Gregor
be complete. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16Fix PR5488: special-case the overloaded arrow operator so that we don't try toEli Friedman
treat it as a unary operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88938 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14If we attempt to add a constructor template specialization that looksDouglas Gregor
like a copy constructor to the overload set, just ignore it. This ensures that we don't try to use such a constructor as a copy constructor *without* triggering diagnostics at the point of declaration. Note that we *do* diagnose such copy constructors when explicitly written by the user (e.g., as an explicit specialization). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Revert r88718, which does NOT solve the ↵Douglas Gregor
constructor-template-as-copy-constructor issue. Big thanks to John for finding this git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Template argument deduction of a non-type template parameter from aDouglas Gregor
template argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13A constructor template cannot be instantiated to a copyDouglas Gregor
constructor. Make sure that such declarations can never be formed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Recognize (and check) pointer-to-member template arguments that areDouglas Gregor
non-type template parameters or constants of pointer-to-member type. Once checked, be sure to retain those pointer-to-member constants as expressions if they are dependent, or as declarations if they are not dependent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@87010 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12When instantiating a reference to a non-type template parameter of pointer toDouglas Gregor
member type (e.g., T Class::*Member), build a pointer-to-member constant expression. Previously, we we just building a simple declaration reference expression, which meant that the expression was not treated as a pointer to member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@87000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12When comparing template parameter lists, distinguish between three cases:Douglas Gregor
- Comparing template parameter lists to determine if we have a redeclaration - Comparing template parameter lists to determine if we have equivalent template template parameters - Comparing template parameter lists to determine whether a template template argument is valid for a given template template parameter. Previously, we did not distinguish between the last two cases, which got us into trouble when we were looking for exact type matches between the types of non-type template parameters that were dependent types. Now we do, so we properly delay checking of template template arguments until instantiation time. Also, fix an accidental fall-through in a case statement that was causing crashes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Improve recovery in a wonky case where one tries to specialize aDouglas Gregor
template template parameter. When building a template-id type, check whether the template-name itself is dependent (even if the template arguments are not!) and handle it as a template-id type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86913 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Remove an overly-eager assertion when replacing tokens with anDouglas Gregor
annotation token, because some of the tokens we're annotating might not be in the set of cached tokens (we could have consumed them unconditionally). Also, move the tentative parsing from ParseTemplateTemplateArgument into the one caller that needs it, improving recovery. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Template argument deduction for template template parameters. ThisDouglas Gregor
permits, among other things, ripping apart and reconstructing templates via partial specialization: template<typename T> struct DeepRemoveConst { typedef T type; }; template<typename T> struct DeepRemoveConst<const T> { typedef typename DeepRemoveConst<T>::type type; }; template<template<typename> class TT, typename T> struct DeepRemoveConst<TT<T> > { typedef TT<typename DeepRemoveConst<T>::type> type; }; Also, fix a longstanding thinko in the code handling partial ordering of class template partial specializations. We were performing the second deduction without clearing out the results of the first deduction. It's amazing we got through so much code with such a horrendous error :( git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86893 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Improve diagnostics when a default template argument does not matchDouglas Gregor
with its corresponding template parameter. This can happen when we performed some substitution into the default template argument and what we had doesn't match any more, e.g., template<int> struct A; template<typename T, template<T> class X = A> class B; B<long> b; Previously, we'd emit a pretty but disembodied diagnostic showing how the default argument didn't match the template parameter. The diagnostic was good, but nothing tied it to the *use* of the default argument in "B<long>". This commit fixes that. Also, tweak the counting of active template instantiations to avoid counting non-instantiation records, such as those we create for (surprise!) checking default arguments, instantiating default arguments, and performing substitutions as part of template argument deduction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86884 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Before checking a template template argument against its correspondingDouglas Gregor
template template parameter, substitute any prior template arguments into the template template parameter. This, for example, allows us to properly check the template template argument for a class such as: template<typename T, template<T Value> class X> struct Foo; The actual implementation of this feature was trivial; most of the change is dedicated to giving decent diagnostics when this substitution goes horribly wrong. We now get a note like: note: while substituting prior template arguments into template template parameter 'X' [with T = float] As part of this change, enabled some very pedantic checking when comparing template template parameter lists, which shook out a bug in our overly-eager checking of default arguments of template template parameters. We now perform only minimal checking of such default arguments when they are initially parsed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Instantiation of template template parameters for nested templates, e.g.,Douglas Gregor
template<typename T> struct X { template<template<T Value> class Y> struct Inner; }; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Fix speculative parsing of dependent template names inDouglas Gregor
nested-name-specifiers so that they don't gobble the template name (or operator-function-id) unless there is also a template-argument-list. For example, given T::template apply we would previously consume both "template" and "apply" as part of parsing the nested-name-specifier, then error when we see that there is no "<" starting a template argument list. Now, we parse such constructs tentatively, and back off if the "<" is not present. This allows us to parse dependent template names as one would use them for, e.g., template template parameters: template<typename T, template<class> class X = T::template apply> struct MetaSomething; Also, test default arguments for template template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86841 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Introduce a new representation for template templateDouglas Gregor
parameters. Rather than storing them as either declarations (for the non-dependent case) or expressions (for the dependent case), we now (always) store them as TemplateNames. The primary change here is to add a new kind of TemplateArgument, which stores a TemplateName. However, making that change ripples to every switch on a TemplateArgument's kind, also affecting TemplateArgumentLocInfo/TemplateArgumentLoc, default template arguments for template template parameters, type-checking of template template arguments, etc. This change is light on testing. It should fix several pre-existing problems with template template parameters, such as: - the inability to use dependent template names as template template arguments - template template parameter default arguments cannot be instantiation However, there are enough pieces missing that more implementation is required before we can adequately test template template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86777 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Make sure that we instantiate default function arguments for anDouglas Gregor
overloaded operator(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86581 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Improve instantiation of default template arguments for nestedDouglas Gregor
templates. The instantiation of these default arguments must be (and now, is) delayed until the template argument is actually used, at which point we substitute all levels of template arguments concurrently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Slightly more testing for instantiation of non-type template parameters in ↵Douglas Gregor
nested templates, for my own sanity's sake git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86570 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Special-case default argument expression in instantiation. This should fix ↵Sebastian Redl
PR4301. Doug, please double-check my assumptions. Read the PR for more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Don't reprocess non-dependent initializers of non-dependent VarDecls. Fixes ↵Sebastian Redl
PR5426. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86460 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Eliminate &&s in tests.Daniel Dunbar
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86430 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07Cope with calls to operator() templates. Fixes PR5419.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86387 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-07When instantiating a field decl, make sure to clone its attributes. With ↵Anders Carlsson
this change FileCheck no longer crashes when it's run without any arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Make sure that EnumConstantDecls always get a type, even when they have ↵Douglas Gregor
type-dependent initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Be a little more careful when trying to extract a TypeDecl from a ↵Douglas Gregor
enum/class/struct/union specifier; in invalid code, we may also see ClassTemplateDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86171 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05De-FIXME a testDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Fixed two places where we needed to force completion of a typeDouglas Gregor
(without complaining if it fails) to get proper semantics: reference binding with a derived-to-base conversion and the enumeration of constructors for user-defined conversions. There are probably more cases to fix, but my prior attempt at statically ensuring that complete-type checking always happens failed. Perhaps I'll try again. With this change, Clang can parse include/llvm/*.h! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05When instantiating a UnaryOperator, allow the resulting expression toDouglas Gregor
still be dependent or invoke an overloaded operator. Previously, we only supported builtin operators. BinaryOperator/CompoundAssignOperator didn't have this issue because we always built a CXXOperatorCallExpr node, even when name lookup didn't find any functions to save until instantiation time. Now, that code builds a BinaryOperator or CompoundAssignOperator rather than a CXXOperatorCallExpr, to save some space. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86087 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Make sure to grab CVR qualifiers from the canonical type. ARGH!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86079 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04When instantiating a MemberExpr, be sure to instantiate theDouglas Gregor
explicitly-specified template arguments, too! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86066 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04When starting a C++ member access expression, make sure to compute theDouglas Gregor
type of the object even when it is dependent. Specifically, this makes sure that we get the right type for "this->", which is important when performing name lookup into this scope to determine whether an identifier or operator-function-id is a template name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Fixed for running on Windows.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86053 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Fix a little canonical-types issue with non-type template arguments.Douglas Gregor
Fixes PR5349. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86052 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Properly replace (cxxscope, template-id) annotation tokens with aDouglas Gregor
single typename annotation token when backtracing. Fixes PR5350. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86034 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Don't try to check the initialization of fields with dependentDouglas Gregor
types. Fixes PR5352. Fariborz, please review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04When performing template instantiation (transformation) ofDouglas Gregor
expressions, keep track of whether we are immediately taking the address of the expression. Pass this flag when building a declaration name expression so that we handle pointer-to-member constants properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Implement support for parsing dependent template-ids that refer toDouglas Gregor
overloaded operators, e.g., p->template operator+<T>() git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Parsing and semantic analysis for template-ids that name overloadedDouglas Gregor
operators, e.g., operator+<int> which now works in declarators, id-expressions, and member access expressions. This commit only implements the non-dependent case, where we can resolve the template-id to an actual declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85966 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Switch XFAIL format to match LLVM.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85880 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Introduce a new class, UnqualifiedId, that provides a parsedDouglas Gregor
representation of a C++ unqualified-id, along with a single parsing function (Parser::ParseUnqualifiedId) that will parse all of the various forms of unqualified-id in C++. Replace the representation of the declarator name in Declarator with the new UnqualifiedId class, simplifying declarator-id parsing considerably and providing more source-location information to Sema. In the future, I hope to migrate all of the other unqualified-id-parsing code over to this single representation, then begin to merge actions that are currently only different because we didn't have a unqualified notion of the name in the parser. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85851 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01When determining whether a reference to a static data member is anDouglas Gregor
integral constant expression, make sure to find where the initializer was provided---inside or outside the class definition---since that can affect whether we have an integral constant expression (and, we need to see the initializer itself). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01Within a template, qualified name lookup can refer to a non-dependent typeDouglas Gregor
that is not known to be a base class at template definition time due to some dependent base class. Treat qualified name lookup that refers to a non-static data member or function as implicit class member access when the "this" type would be dependent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31Implement "incremental" template instantiation for non-type templateDouglas Gregor
parameters and template type parameters, which occurs when substituting into the declarations of member templates inside class templates. This eliminates errors about our inability to "reduce non-type template parameter depth", fixing PR5311. Also fixes a bug when instantiating a template type parameter declaration in a member template, where we weren't properly reducing the template parameter's depth. LLVM's StringSwitch header now parses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85669 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30When looking for a copy-assignment operator to determine the cv-qualifiers ↵Douglas Gregor
on its argument type, ignore assignment operator templates git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85629 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30When a friend is declared in a dependent context, don't even try toDouglas Gregor
match it up with a declaration in the outer scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30Instantiate class template friends better; fixes PR5332.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85612 91177308-0d34-0410-b5e6-96231b3b80d8
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